I saw this on YouTube. It goes way beyond ‘surviving an emergency situation’ but it is pretty interesting. Knowing how to build this would also be very handy if you are located near a flowing stream and you need to create power. Maybe at some point in the future I might have a go at building this, just so I know I have committed the skills to my memory. Check out the video here:

The video credit of course goes to those who made it. Check out their channel at Advoko MAKES for many other great survival-related videos. Thanks heaps Advoko Makes for all your great videos!